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Adds a new option to IParseOptions, alternateComment. #968

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merged 2 commits into from
Feb 6, 2018

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gideongoodwin
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If this new flag is true, the tokenizer will change the way it parses comments from the input. Instead of requiring /// or /** / (docblock style) comments only, it will additionally accept // and / */ comments. It will consecutive lines of // comments into one multi-line comment.

The motivation here is that we want to parse comments in customer api descriptions which don't adhere to the docblock style.

…his activates an alternate comment parsing mode that preserves double-slash comments.
src/tokenize.js Outdated
// standard comment parsing
if (charAt(offset) === "/") { // Line
// check for triple-slash comment
isDoc = charAt(start = offset + 1) === "/";
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What do you think of doing something like

isDoc = (charAt(start = offset) === "/" && ++offset) || alternateCommentMode;

here so it always handles /// and advances properly, and otherwise falls back to // in alternateCommentMode? Just asking because it seems that duplicating this section could potentially be avoided.

I'd say it would be fine if /// in non-alternateCommentMode also coalesces consecutive lines.

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Thanks for looking. I agree that avoiding duplication would be good, however I am hesitant to change existing behavior in case other consumers of this library depend on it.

In the spirit of your comment, I consolidated the /* handling for original and alternate parsing modes. The ////// handling is a bit too divergent to consolidate further.

@dcodeIO dcodeIO merged commit 8400f87 into protobufjs:master Feb 6, 2018
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dcodeIO commented Feb 6, 2018

Looking good, thank you!

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2 participants